serious need of an overnight solution!!

Lvneveryminuteofit

So we've been using both FB perfect size and BG one size dipes at night with the doublers and an extra hemp insert. They're already so full I can't see adding ANOTHER insert but I've thought about doubling up on the hemp.

The problem is that DS is a super heavy wetter and he sleeps on his side which is a nightmare... we've had night after night this week of leaks and he's up for an hour or more after we change him. Not so fun at 3 am!! 

Any suggestions? Should I switch to another diaper, try a different insert, shove more hemp in there? Any help welcome!! TIA